RM Flashcards
(149 cards)
general
Differences IC and ordinary crimes
(1) Criminalized by treaty, not by national government
(2) crimes of large scale, committed under particular conditions (during conflict).
(3) evidence: OC more focus on forensic evidence by contrast with IC trials
The tesseras criminologica of IC
- Prevalence: Measurements and occurrence of crime. Predominantly quantitative.
- Etiology: Causes of crime. Explains crime with bio-/psychological theories, the situational characteristics of crime (socioeconomic, cultural or geophysical make-up), integrated/macro theories.
- (Non)-judicial responses: Legal or extralegal responses (of sentencing). Differences in investigation and trial.
- Victims: Victim studies which focus on its characteristics, well-being, aftermath. In IC focus on societal impact, such as socio-economic impact, health consequences (famine), or ecological impact.
Quantitative –> analytical empirical
- Inductive phase: Start with research idea into RQ
- Deductive phase: how we are going to measure the construct to answer the RQ (conceptualization, operalization)
- Data collection
- Analysis
- Evaluation
Qualitative –> interpretative empirical: features
Grounded theory = The methodology involves the construction of hypotheses and theories through the collecting and analysis of data. Grounded theory involves the application of inductive reasoning.
Conceptualization is more inductively, generally working from empirical data as they emerge.
Saturation
By the time the explanation or interpretation of the phenomenon under study converges in the sense that the explanation does not change anymore upon collection of newdata, the research terminates.
Narrative view
= Give an overview and summary of a number of relevant studies that have been published.
Systematic review
= Aim to identify all relevant studies through a systematic search with keywords across multiple databases.
Meta-analysis
= A systematic review where not only a summary is given, but the data from all previous studies are combined into a new aggregated dataset and re-analyzed.
Construct validity
= To what extent does an empirical measure reflect the real meaning of the concept?
For an instrument to have construct validity it first has to meet all the other validities
Content validity
= Degree to which a measure covers the range of characteristics included within a concept.
Criterion validity
= The scores obtained with the instrument should correlate with an external criterion that you would expect it to correlate with.
Construct validity-in-the-narrow-sense
= Whether a measure is built in such a way that does not discriminate against certain research subjects → understanding of subjects.
Other validities
Face validity, statistical conclusion validity, external validity
Internal validity
= The degree of confidence that the causal relationship you are testing is not influenced by other factors or variables. Confounders or third variables can generate an association between two properties that are not causally related.
Reliability
= Do we have precise measurements? Do identical measurements end up in identical results? Refers to the precision with which a construct is measured.
Ethics: 6 features
- Decent and respectful treatment of research subjects or respondents.
- Informed consent for the respondents.
- Ensure the safety of respondents.
- Do no harm principle = Entails that as a researcher it is one’s duty to minimize the risk that research participants suffer adverse consequences from participating in the research
- Confidentiality, anonimousity for respondents and their data.
- Data should be transported safely and stored securely.
Populations and samples connotation:
We write sample characteristics with Latin literals (M, s, rXY ); whenever we refer to properties of the population we use Greek literals (such as µ for the mean.
Aim sampling
- Quantitative studies: Representativeness & generalizability.
- Qualitative studies: Maximizing information & saturation.
Litmus test
= When every population member has an equal chance to end up in the sample.
Random sample: def, terms (2), pros, cons
Drawn from a complete pre-existing sampling frame.
Sampling frame = All persons who have a chance to be included into the sample (e.g., a list, area sampling).
Sampling error = Deviations that occur by chance.
Pros: ensures external validity
Limits: list of people not always available
Systematic sample
= Type of probability sampling method in which sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval.
Ensures spread (not distribution). Is efficiënt when you e.g. don’t have a framework to work with.
Stratified sample
= Researchers divide subjects into subgroups called strata based on characteristics that they share (e.g., race, gender, educational attainment). Once divided, each subgroup is randomly sampled using another probability sampling method.
Advantage: Ensures representation of relevant strata/equal precision over strata (distribution).
Disproportionate stratified sampling = Allows the researcher to give a larger representation to one or more subgroups to avoid underrepresentation of the said strata. This applies to populations with a very high strata population ratio.
Cluster sample
= Divide population into smaller random groups in clusters. Then randomly select among clusters to form a sample. Very efficient for large populations. The more clusters with small groups → higher validity.
Limitations:
- Sampling error –> more noisy clusters
- DEFF
Multistage cluster sampling = Rather than collect data from every single unit in the selected clusters, randomly select individual units from within the clusters.
DEFF
Design effect. Estimates based on a cluster sample tend to be more volatile than estimates based on a flat random sample. This is due to the fact that cluster members resemble each other. The more respondents within a cluster, the larger the cluster, the larger DEFF.
Rule of thumb: 1-3 → above 3 is problematic. and results could be too noisy.
If DEFF is 3 🡪 the variability is thrice that of a random sample of the same size. If DEFF is 1.40 🡪 this means the variance is 40% increased. As DEFF is ratio, a DEFF of 1 would indicate no difference.